Trolley



M.. D. DOMINGUEZ.

TR OLLEY.

APPLICATION FILED' FEB. 10. I921.

Patented Oct. 4, 1921.

a SHEETS-SHEET 1.

INVENTOR.

M. D. DOMINGUEZ.

TROLLEY.

APPLICATION FILED FEB.10. 1921.

3 SHEETS--SHEET 2.

IN VEN TOR.

' ATTORN YS.

M. n. DOMINGUEZ. TROLLEY.

. APPLICATION FIL ED FEB. 10, I921.

1,392,560, v Patented Oct. 4, 1921.

a sums-sneer s.

INVENTOI.

ATTORN YS.

l'cation. a q p p p v IfThis invention relates to trolleys. and'has'asan object theprovision of a trolley-mount:

U D ST ES v *MANUEIIDQDOMINGUEZ, or N woRLEANs, LOUISIANA.-

rRoLn-EYQ To all whom may 60 1mm Be it known that I, Mamie Dj Dams GUEZ,a subject of the King of Spain, residing, at New-Orleans, in the countyof Drleans and State of Louisiana, have invented certain new and usefulImprovements in Trolleys, of which thefollowingis a specified in a harpofsuch a nature-thatthetrolley wheel can not leave the wlre. Afurtherobject of the invention'is the Tprovisionof means to; automaticallyrelease the trolley safety means when the trolleyjis pulled down by theusual rope.

Illustrative embodiments ofitjheiinvention are shown in the accompany ngdrawings Figure 1 is a elevation, jpa'rtly'in section, showingthetrolley ire in section Fig.- 2 isa detail plan View of the invention,showing a section of trolley wireand a hanger; 1 ''Fig. 3 is a sideelevationpj f Fig, 4 is a detail rear elevation, partly 1n section, andshowing a trolley wire cross- I over, and'a modified form oftheinvention the harp upon a hollow'shaft 3. The heel is .designed torevolve While th'e shaft 3 remains stationary, the-shaft being' held inplace by 1 means of the set screw 40, 1 Bean tion of Fig. '7

' and v g- '5 is adetail side, elevation -voff'the form shown in Fig, 4V

. V Fig; 6 is a detail plan i fffi ma shown in Figizii r t Fig. 7 "is adetail rearelevation of fu her modification; r V Fig. 8 is aside lemmaor the modifica- @Eig. 9 is a detailplanview of the sh'owinc of Fig.7;

mg lugs"? and "8 are formedintegrally with the side pieces 1 andverticalshafts ll are jo'urnaled in these lugs. Rigidly secured 1 upon the upperends of. the shaftsllare the retaining disks41, 42, which disks haveenlargements 9 where they fare securedupon I the shafts 11. The disk 41'is bifurcated Specifiati onnf Letters Patent.

1 means filed rebrirary 10, 1 921, serial 6.'. 444,o2i,. I

out of position; i :1 v I y w l To'preserve therharp in its-uprightposition v a parallel motion device is provided in the formzoffanarm)16,nintegral' with the harp, an armv22ifintegr al with the trolleysupport 24, and'an arm20 pivoted at 17 la -s ea- Patented Oct. 4; 192-1and f the bot tom recess betweenthe bifurcationsis rounded as at 43.Disk 42 has itslcentr'al portionj43 reduced in thickness, so. as tofpassbetween the bifurcations of'the' disk 41 Land the resulting shouldershave their peripheries rounded, as shown; at

44.; Whenfthe shafts .11 revolve'the periphery 10f disks 41 and 42 willremain in cll0'se proximity to: the rounded shoulders-44 and the roundedbottom 43 of the recess 7 respectively,until turned sufliciently for theshoulders and disks to separate. 1

To, maintain the ,disks 4L [and 42' in the normal position sho wn in.Fig. a spring 4 housed in the hollowshafb 3 isconnected to the shafts is11, as: by means of plugs 6.

rWhen the trolley is to be lowered. by means of the rope l2 thedisksmustbeturned out oflthe' way'by, revolutions of the shafts 11. Tocause this. movement the .rope 12 is laid over a pulley '14, throughtheshaft 3, about the lowerkend of one shaft 11, grooved as at 45, for its.reception, again through the shaft Band about-the lowerfend-of the othershaft 11, and secured thereto; The pulley 14 is shown "as supported in abracket 13 carried by'the side'piece ,1, Y

v WVhen during the movement-of a car carrying the'trolleythe disks 41and 42- come 1Il contact with a ihanger,, as29, they will each bevturned to V the "rear" until the hanger is passed, when: the spring. 4Will' immediately "return them to -normal position, The movementtotherearwill be only sufii- PATENT .i OFFICE.

cient to pass the hanger 29 and notsuflicient to allow the wiretoescapeshouldany obstruction \te'ndto throw the trolley down- Ward. atthistime; Collars 10 are provided on; the shafts 11 to preventtheirraising and at 2]. to the arm 16 and 22.} lThetrolley pole 19 ispivotedto the harp at l8 and to "the support 24 at 23 and is pressed upwardlyby springs25 secured to the extension 46 of the trolley pole19rand toLthe arm-26 integrahwithsupport 24. i

When the trolley rope 12 is pulled upon, disk 41 will be revolvedforwardly and disk 42 revolved rearwardly,resulting in aseparationofjthevdiskssufficient to allow the trolley to be pulled down.

In the form of the device shown in Figs.

. .4, 5 and 6 the side pieces 1 have'the wheel T 2 borne by hollow shaft'3 mounted insball bearings 31, the cone 33 for which is secured to theshaft by screws 47 and the cups for which are formed integral with theside pieces 1.1

p In this from of the device, as in that of Figs. 1, 2 and 3,the'shafts' 11 are journaled in bearing lugs 7 and 8,carried by the sidepieces 1. "The disksDi'are reduced in thick ness at their outer edgesinreverse relation so as to overlap, the'resulting shoulders '48,

'49 bein rounded in thesame manner as alread escribedin shoulders 44 andrecess ubricant receiving recesses 50 and 51 are shown in the upper'surfacesof the hearing" lu gS*7. and 8 and .a cover plate 34 isprovided to prevent the escape of lubricant from recesses 51. A collar10 isshown securedto each of shafts 11 below bearing lugs 7 to preventupward movement of the shafts. Rigidly secured upon the lower ends ofshafts'll are the members G'each bearing -'a segmental sheave 52, andlevers 53 and '54,

having eyes 55 and at their ends. A spiral sprin'g'4 housed inthe hollowshaft 7 I 3is secured to theeyes 56 as by; means of "have their en dssecured to eyes 55.

chains 5. The spring being under tension will tend to hold the disks 9"in the position shown in the drawings.

The upper portion "of the trolley rope 12 -in Figs. 4, 5 and 6 is showndouble, and is passe through eyes 37 carried the lower ends of the'sidepieces 1, then through pulleys 14mounted upon arms 57 projecting fromthe side ieces 1, about the sheaves 52, and The pulleys 14are-preferablymounted. in a in the same manner as alread bifurcated fitting 13, eachmounted upon a pivot pin 58, so as'to be revolublefto follow the motionofthe ends of the levers 53. The action of disk 9' upon meetinganobstruction, such as a han er, will be the same as 'that'of disks41 an42, and when-the trolley rope 12 is pulled upon the shaft 11 will berevolved against the action of sprin 4 describe in connection with theform of F l gs. 1, 2 and 3.

A specialform of crossover is shown for the trolley wire in Figs. 4, 5and 6, comprising a cross 35 having four arms, ofequal length with thewire holder 29 secured upon downwardly projecting member 60 formeduponthe'end of each arm. 'An eye 61 may be provided for the attachmentof guys.

I 'Atthe intersectionof the arms of the cross 35 there is shown a button69 for the'at- 'tachment of a feedwire. Projecting down-- -wardlyfromthe centerof the intersection of the cross is a pin 36 having arounded enlargement 59 upon its lower end for the purpose of preventingthe upward movement of the trolle at the intersection, which movementwould bring the disks 9' into eye 1n each of contact with the member 35,and which contact mightby friction swing the disks 9 to the rearv andallowtheitrolley to escape from the wire.

- The form of the inventionshown in Figs' 7- to 10 inclusive is designedto be sufiiciently ing the neces'sityfor the special form of cross-overshownin Figs. 4, 5 and 6. In this form of the invention the sidepieces'il are .sm allin lateral dimensions to be used with 1 an ordinaryform of cross-over, thus avoidformed with two- 1nember s 62,. 63. The

curedyto the members 62 and 63'by means of set screws 64 and 65. Theendsof the shaft 3 are perforated between the members" 62 and 63 and thevertical shafts 11 are passed" through these perforations and are journaled in blocks 7 f and 8" rigidly'secured to .or formed integrallywiththe members '62, 63} The collars 10 are provided, upon the" shafts11 to 'p'revent their undue upwardmotion. The upper portion ofshafts .90

ll' are reduced in size and allowed to project above disks 9 as at 29.,fora purpose to be explained. The disks9" are reversely reduced in size,so. as to overlap in the same shaft '3 upon which the trolley wheel 2 is"journaled ,is stationary and is rigidly semanner as already-describedfor disk m,

are preferably made in the form shown in planin Fig. 9 with enlargedends 66in the portion whe'relthe overlap. When the trolle'yv providedbyt is form of theinvention passes the usual form ofcross-over the pro-w Vjecting portions-29 of theshafts'll will impingeupon the smooth surfaceprovided by these cross-overs, and will prevent the means of pins 67;The inwardly projecting ends of the levers 6 are secured to, the

projecting. arms through eyes in oppositely 14 h ring is s own 13carried by the harp.

disks 9" from coming incontact therewith." To hold the-shafts llintheirnorinalposi- 1 tions levers, 6. are passed through openings 'intheir-"lower ends and securedthereinby placed upon the b ight of therope"'5 to i whichthe trolley rope 12 is secured. When a the rope 12is'pulled upon thedisks 9f' w'ill both be swung rearwardly to 'allow"thetrolf{ ,ley tobe lowered away'from the wire 28X In the. form of theinventiontshown in V Fig. 8 the horizontal motion arm 201 is pivs oted.upon pivot- 21 between the bifurcated endsof a lever 22 carried by the"trolley. support. arm 22 are extended tothe. rear and turned at an angleto provide lugs 26, through an which lugsla bolt '30 may be Theends ofthe bifurcations of passed and may be secured therein by nuts 31.Trolley supporting springs 25 are secured to the eye-bolts and to theextension.

of the trolley pole 19 beyond its pivot in the usual manner.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:

1. A trolley comprising in combination, a harp having side pieces,atrolley wheel revolubly mounted in said side pieces, a vertical shaftjournaled on each side piece, inwardly projecting members carried bysaid shafts, said members closing the space above the trolley wheel, andresiliently yielding means to keep said members in normal position.

2. A trolley comprising in combination, a harp having side pieces, atrolley wheel revolubly mounted in said harp, a vertical shaft journaledon each side piece, inwardly projecting members carried by said shafts,said members overlapping each other and the trolley wheel, resilientyielding means to keep said members in normal position, and means tokeep said harp in a substantially vertical osition during changes oftrolley pole ang e.

3. A trolley comprising in combination, a

, harp having side pieces, a trolley wheel revolubly mounted in saidharp, a vertical shaft journaled on each side iece, inwardly projectingmembers carrie by said shafts and closing the space above the wheel, aspring exten ing transversely of said harp connected to said shafts toresist rotation thereof.

4. A trolley comprising in combination, a harp having side pieces, atrolley wheel revolubly mounted in said harp, a vertical shaft to. holdsaid members-in normal journaled on each side iece, inwardly projectingmembers carried by said shafts and closing the space above the wheel, aspring extending transversely of said harp and con nected to said shaftsto resist rotation thereof, and means operable by a trolley rope torevolve said shafts against the resistance of said spring to move saidmembers for passage of a trolley wire.

5. A trolley comprising in combination, a harp having side pieces, atrolley wheel revolubly mounted in said harp, a vertical shaft journaledon each side piece, inwardly projecting members carried by said shafts,said members having portions of reduced thickness providing shouldersadjacent the respective shafts, said shoulders reversely disposed andthereduced portions normally overlapping whereby to close the space abovesaid trolley wheel, resiliently yielding means sition.

6. A trolley comprising in com ination, a harp having side pieces, atrolley wheel revolubly mounted in said harp, a vertical shaft journaledon each side piece, inwardly projecting members carried by said shafts,said members having portions of reduced thickness providing shouldersadjacent the respective shafts, said shoulders reversely disposed andthe reduced portions normally overlapping whereby to close the spaceabove said trolley wheel, resilient yielding means to hold said membersin normal position, and means operable by the trolley rope to revolvesaid shafts against the resistance of a,

said resilient means to swing said members for passage of a trolleyWire.

In testimony whereof I afiix m si ature.

MANUEL D. DOM NG -EZ.

